Autoblog and Yahoo may earn commission from links in this article.The Ford Mustang Dark Horse is the top naturally aspirated version of the seventh-generation Mustang, and this one has been transformed by Hennessey's H850 supercharger package. Finished in Vapor Blue Metallic with 2,800 miles, it makes a claimed 850 horsepower. It is on Cars and Bids at no reserve, bid to $30,000 with six days to go.2024 Ford Mustang Dark Horse Hennessey H850Cars & BidsWhat it's worth right nowThe base Dark Horse has held its value reasonably well, and modifications add a further layer. According to Classic.com and current listings, base Dark Horse coupes generally trade from around $55,000 into the high $60,000s, with this car's $76,650 window sticker reflecting a loaded example before Hennessey added the $24,950 H850 package for a combined cost near $101,000.AdvertisementAdvertisementThat combined cost is the key context: modified cars sell for less than the sum of their parts. The H850 build adds real performance and some value, but the considerations below place it below its as-built cost.2024 Ford Mustang Dark Horse Hennessey H850Cars & BidsWeighing the low mileage and big-power build against those points, fair value realistically lands in the $60,000 to $80,000 range, most likely the mid-to-low $70,000s. At $30,000 with six days remaining and no reserve, the bidding should climb well into that band.Condition and detailsThe car is a low-mileage, heavily built example. It carries the Dark Horse Appearance, Handling, and Tech packages with 19-inch wheels, a Torsen differential, heated and ventilated Recaro seats, and the naturally aspirated 500-horsepower Coyote V8, to which the Hennessey H850 package adds an upgraded supercharger, high-flow induction, an upgraded fuel pump and injectors, and HPE engine management for a claimed 850 horsepower and 650 lb-ft. Additional touches include a wickerbill spoiler, carbon-fiber trim, and under-hood LED lighting, and the sale includes the supercharger tuner and Hennessey serial-numbered plaque.2024 Ford Mustang Dark Horse Hennessey H850Cars & BidsA few points deserve attention. The H850 power is Hennessey's claimed figure, as no dyno sheet was provided, so treat it as manufacturer-stated, though Hennessey packages are reputable and often warranty-backed; confirm the warranty coverage and how the supercharger affects the Ford powertrain warranty. Cosmetically, the seller discloses scuffs on the front splitter and an area of removed paint under the rear Hennessey badge, which the seller says was done intentionally to mount the badge.2024 Ford Mustang Dark Horse Hennessey H850Cars & BidsTwo more notes: this is the 10-speed automatic, which is quicker than the available manual and the seller praises it, though some enthusiasts prefer the stick, and the combined roughly $101,000 as-built cost will not be fully recouped, which is normal for a modified car. It is a clean-title, low-mileage car in a desirable color, previously sold on this platform with charity-raffle provenance, and a pre-purchase inspection is sensible.2024 Ford Mustang Dark Horse Hennessey H850Cars & BidsAdvertisementAdvertisementThe offerSpecificationDetailMakeFordModelMustang Dark Horse (Hennessey H850)Year2024Mileage2,800 milesEngineSupercharged 5.0-liter V8Power850 hp and 650 lb.ft claimed by Hennessey (500 hp stock)Transmission10-speed automaticDrive typeRear wheel drive with Torsen limited-slip differentialExterior colorVapor Blue MetallicInterior colorBlack and blueCurrent bid$30,000, no reserve, with six days leftInterested in this 2024 Ford Mustang Dark Horse Hennessey H850? View the listing here.What makes the Dark Horse H850 uniqueThe Dark Horse is the most track-focused version of the S650 Mustang, slotting above the GT as the spiritual successor to the Mach 1. It uses an uprated version of the 5.0-liter Coyote V8 making 500 horsepower, along with a specific body kit, unique badging, a titanium shift knob, and suspension and chassis tweaks that sharpen its handling. This example goes further, adding Hennessey's H850 package, which bolts on a supercharger and supporting hardware to nearly double the output to a claimed 850 horsepower, turning an already-serious muscle car into a genuine supercar-slaying build.2024 Ford Mustang Dark Horse Hennessey H850Cars & BidsThat combination of the Dark Horse's factory chops and Hennessey's proven supercharger engineering is what makes this car stand out. It pairs the newest Mustang's modern platform and handling with the kind of straight-line violence that used to require a Shelby badge, all wrapped in a striking Vapor Blue finish.My takeThis is a seriously fast, seriously eye-catching Mustang. The Dark Horse is a genuinely good platform, and the Hennessey H850 package turns it into a monster, backed by one of the most respected names in the business. In Vapor Blue with only 2,800 miles and no reserve, it is an appealing prospect for a buyer who wants big, warranty-backed power without building it themselves.AdvertisementAdvertisementFair value sits in the $60,000 to $80,000 range, below the roughly $101,000 as-built cost because modified cars simply do not recoup their full investment, so the no-reserve bidding has room to climb. Go in understanding the details: get the Hennessey warranty documented and ideally a dyno to confirm the claimed 850 horsepower, note the cosmetic items, and decide whether the automatic suits you. Handle that, and you have a low-mileage, big-power modern Mustang for well under what it cost to build.Disclaimer: This post is for informational purposes only. We are not a dealership or broker. All vehicle specifications, pricing, and availability are subject to change without notice. We are not responsible for typographical errors, omissions, or the accuracy of the provided information. Please verify all details directly with the seller.Autoblog aims to feature only the best products and services. If you buy something via one of our links, we may earn a commission.This story was originally published by Autoblog on Aug 20, 2026, where it first appeared in the Car Buying section. Add Autoblog as a Preferred Source by clicking here.
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